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2009 Fiscal Year Final Research Report

Stable nitrogen isotope ratio-guided analysis of PCBs and PBDEs congener level biomagnification profiles

Research Project

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Project/Area Number 19310024
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental impact assessment/Environmental policy
Research InstitutionEhime University

Principal Investigator

TAKEUCHI Ichiro  Ehime University, 農学部, 教授 (30212020)

Co-Investigator(Kenkyū-buntansha) KAWANO Masahide  愛媛大学, 農学部, 准教授 (50116927)
Co-Investigator(Renkei-kenkyūsha) TAKADA Hideshige  東京農工大学, 大学院・共生科学技術研究院, 教授 (70187970)
Project Period (FY) 2007 – 2009
Keywords生態系評価 / 浅海域生態系 / PCBs / PBDEs / 窒素安定同位体 / 生物濃縮特性 / 食物連鎖
Research Abstract

Biomagnification profiles of PCBs and PBDEs through shallow water ecosystems around Japan were analyzed by congener level using nitrogen stable isotope ratios as guides to trophic structure. About 130 to 155 PCB congeners were detected in half of the biological samples collected from shallow water ecosystems of western Japan. For these PCB congeners, degree of biomagnification on a wet weight basis exceeded that on a lipid weight basis. For each PCB congener level, the degree of biomagnification increased with increasing chlorination substitution up to about 6 chlorine numbers; the degree of biomagnifications did not increase thereafter at higher chlorination substitution numbers. The degree of PBDE congener biomagnification was lower than that of PCB congener with same degree of lipophilicity.

  • Research Products

    (6 results)

All 2010 2009 2008

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Bioconcentration and biomagnification of polybrominated diphenyl ethers (PBDEs) through lower-trophic-level coastal marine food web2009

    • Author(s)
      Mizukawa K, Tadata H, Takeuchi I, Ikemoto T, Omori K, Tsuchiya K.
    • Journal Title

      Marine Pollution Bulletin Vol.58(in press)

      Pages: 1217-1224

    • Peer Reviewed
  • [Journal Article] Stable isotope-guided analysis of congener-specific PCB concentrations in a Japanese coastal food web2009

    • Author(s)
      Matsuo H, Kawano M, Omori K, Nakajima K, Takeuchi I.
    • Journal Title

      Marine Pollution Bulletin Vol.58

      Pages: 1615-1623

    • Peer Reviewed
  • [Presentation] Biomagnification profiles of dioxin-like PCBs in the predator-prey relationship between sand lance and sea bass in the Seto Inland Sea, Japan2010

    • Author(s)
      atsuo H, Shiki Y, Kawano M, Omori K, Matsuda M, Morita M, Takeuchi I.
    • Organizer
      First International Conference on Environmental Pollution, Restoration, and Management, Ho Chi Minh City, Vietnam
    • Year and Date
      2010-03-03
  • [Presentation] 九州西岸域の浅海域生態系におけるPCBsの生物濃縮特性の解析2009

    • Author(s)
      松尾広暁、河野公栄、松田宗明、森田昌〓、竹内一郎
    • Organizer
      環境ホルモン学会第12回研究発表会
    • Place of Presentation
      東京都
    • Year and Date
      2009-12-08
  • [Presentation] Congener-specific concentration of PCBs through the food web in the Sargassum community of the Seto Inland Sea, Japan2008

    • Author(s)
      Matsuo H, Kawano M, Ikemoto T, Omori K, Matsuda M, Morita M, Takeuchi I.
    • Organizer
      5th SETAC World Congress
    • Place of Presentation
      Sydney, Australia
    • Year and Date
      2008-08-05
  • [Presentation] 臭素化ジフェニルエーテル(PBDEs)の沿岸域生態系における生物濃縮経路と傾向の解明2008

    • Author(s)
      水川薫子、高田秀重、池本徳孝、松尾広暁、竹内一郎、土屋光太郎
    • Organizer
      第17回環境化学討論会
    • Place of Presentation
      神戸
    • Year and Date
      2008-06-11

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Published: 2011-06-18   Modified: 2016-04-21  

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